Marian Aguilera attended the premiere of the film Habitación en roma/Room in Rome on May 6, 2010 in Madrid, Spain, at the Capitol cinema. She's not part of the cast or production crew of the film though.
Video of her very brief interview there (by Caiga Quien Caiga):
Video uploaded by alexcs18
Images of Marian Aguilera:
(Click on image for original size)
Images from COM and zimbio.com.
All images are copyright protected.